Who was the founder of sadtu?

The South African Democratic Teachers' Union (SADTU) was founded in 1990. It emerged as a response to the need for a united teachers' organization in South Africa during the transition away from apartheid. The founding leaders included prominent figures such as Thulas Nxesi and other educators who sought to advocate for teachers' rights and improve the education system. SADTU has since become one of the largest teacher unions in the country.